Revelation 13:18 Here is wisdom. Let him that hath understanding count the number of the beast: for it is the number of a man; and his number is Six hundred threescore and six. [link to www.biblegateway.com]

Walid Shoebat's theory is that John in Revelation 13:18 saw the Bismallah and translators thought it was the Greek number 6. Shoebat in his book "God's War on Terror" states number can be translated as multitude.

So Rev. 13:18 could read something like this: Here is wisdom, Let him that hath understanding count the multitude of the beast: for it is the multitude of a man; and his multitude is in the name of Allah.